prove that angles opposite to equal sides of an isosceles triangle are equal
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Hey mate, this is your answer.
Step-by-step explanation:
Take a triangle ABC, in which AB = BC
Construct AC bisector of A meeting BC at P.
In ∆ABP and ∆ACP
AP = AC [common]
AB = AC [given]
Angle BAP = angle CAP [by construction]
Therefore, ∆ABP concurrent ∆ACP [S. A.S. ]
This implies, angle ABP = angle ACP [C. P. C. T. ]
Hence proved that angles opposite to equal sides of a triangle are equal.
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